- Patent Title: System and method for multi-frequency downhole bus communication
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Application No.: US16330326Application Date: 2017-06-26
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Publication No.: US10539013B2Publication Date: 2020-01-21
- Inventor: Imran Sharif Vehra , Zinovy B. Krugliak , Matthew Chase Griffing , Clint Paul Lozinsky
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: McGuireWoods LLP
- International Application: PCT/US2017/039285 WO 20170626
- International Announcement: WO2019/004999 WO 20190103
- Main IPC: E21B49/00
- IPC: E21B49/00 ; H04L5/00 ; G06F13/00 ; E21B47/12 ; H04L12/40 ; H04L25/03 ; E21B47/18

Abstract:
A bottom hole assembly includes a single wire bus, a legacy sensor coupled to the single wire bus, and at least one high frequency communication sensor coupled to the single wire bus. The high frequency communication sensor injects a high frequency signal alternating between high frequency synchronization pulses and high frequency data signals onto the single wire bus. A first high frequency pass filter coupled between the at least one high frequency communication sensor and the single wire bus is also included. The high frequency pass filter passes the high frequency signal to the single wire bus from the high frequency communication sensor. The bottom hole assembly includes a first high frequency blocking filter coupled between the legacy sensor and the single wire bus. The high frequency blocking filter blocks the high frequency signal from the high frequency communication sensor from disturbing a legacy signal at the legacy sensor.
Public/Granted literature
- US20190226332A1 SYSTEM AND METHOD FOR MULTI-FREQUENCY DOWNHOLE BUS COMMUNICATION Public/Granted day:2019-07-25
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